Question: Who is the  {protein} for {physically interacts with} of {diazepam}
Paraphrase: What protein physically interacts with diazepam?
SPARQL (Wikidata):  select distinct ?obj where { wd:Q210402 wdt:P129 ?obj . ?obj wdt:P31 wd:Q8054 } 
Answer: Adrenoceptor alpha 1A, Gamma-aminobutyric acid type A receptor subunit alpha1, Gamma-aminobutyric acid type A receptor subunit alpha3, Gamma-aminobutyric acid type A receptor subunit alpha2